Stegosaurus is the largest member of the stegosaur family - a wide-ranging group of large plant-eating dinosaurs found around the world.
The most impressive features of Stegosaurus are undoubtedly the two rows of plates running down its back. When these were first spotted, palaeontologists presumed they were for defence; we now know this isn't the case. Firstly, the plates are too weak to hold off another dinosaur. Secondly, they don't really protect the most vulnerable parts of the dinosaur, such as its belly region.
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